Jelq without erection

Hey I have exactly the same problem.I try to do the newbie routine and I try to do 200 jelqs and I have to stop every 25 and watch porn or have a strong imagination because my erection totally goes away while I’m counting out the jelqs. It’s tough for me too and the best thing I can do is watch porn and jerk it for a while until it’s 70- 85 ish.